Proviosn module custom function confirm pop up

[wtools]

Hi,

 

We can create custom functions easily by following the link

https://developers.whmcs.com/provisioning-modules/custom-functions/.

When ever we click on the custom function, i would like to display a confirm box.

like  'Are you sure?'

 

How can we do that?

For the default functions like CreateAccount, confirm box is there already.

But it's not there for the custom function, how can we implement that?